Eaton RSP40 Axles &amp; Differentials For Sale

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Eaton RSP40 Rear Differential for a 2004 Kenworth T2000

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ABS, Ratio: 370

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T2000
Will Fit Year(s)	2004
Stock Number	972849-5
MLS Number	9391310
Category	Differentials, Rear
Last Updated	5/14/2026
Location	Farr West, UT, US
Sold By	Rocky Mountain Truck Parts

2013 Eaton RSP40 Rear Differential for a Peterbilt 384

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RSP40 - Rear Rear - 4.11 Ratio - Pullout - DIFF ONLY.

Condition	Used
Rear End	4.11 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	384
Stock Number	4424-3
MLS Number	14305904
Category	Differentials, Rear
Last Updated	5/13/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Differential

Recently Updated

$1,215 USD

RSP40-336 - Reconditioned

Condition	Remanufactured
Rear End	3.36 ratio
Stock Number	RSP40-336-REC
MLS Number	14028853
Category	Differentials, Rear
Last Updated	5/12/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2019 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

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Eaton Front Rear Axle Housing, DSP40

Condition	Used
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4470-45
MLS Number	14336004
Category	Axle Housings, Rear
Last Updated	5/7/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2019 Eaton RSP40 Rear Differential for a Peterbilt 579

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RSP40 - Rear Rear - 3.08 Ratio - Pullout - DIFF ONLY.

Condition	Used
Rear End	3.08 ratio
Fits To Make(s)	PETERBILT
Fits To Model(s)	579
Stock Number	4470-3
MLS Number	14335968
Category	Differentials, Rear
Last Updated	5/7/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(855) 750-___ SHOW
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2007 Eaton RSP40 Rear Axle Housing for a Kenworth T800

$1,500 USD

OEM# 321554, GOOD CONDITION USED REAR/REAR AXLE HOUSING

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T800
Stock Number	12696
MLS Number	10895095
Category	Axle Housings, Rear
Last Updated	5/3/2026
Location	Enfield, CT, US
Sold By	Camerota Truck Parts

Eaton RSP40 Rear Differential

$1,350 USD

RSP40-342 - Rebuilt

Condition	Remanufactured
Rear End	3.42 ratio
Stock Number	RSP40-342-REB
MLS Number	13963946
Category	Differentials, Rear
Last Updated	5/1/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

(833) 835-___ SHOW
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Eaton RSP40 Rear Axle Housing for a 2007 Kenworth T800

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EATON RSP40P AXLE HOUSING( REAR), ratio: 3.55 OFF A KENWORTH T800

Condition	Used
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2007
Stock Number	KW-0427-41
MLS Number	9988646
Category	Axle Housings, Rear
Last Updated	5/14/2026
Location	York, ON, Canada
Sold By	Lomoca Inc.

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Eaton RSP40 Rear Axle Assembly for a 2007 Kenworth T800

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EATON RSP40 REAR AXLE HOUSING, CAPACITY: 40000 LB RATIO 3.55,, Ratio: 3.55

Condition	Used
Rear End	3.55 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T800
Will Fit Year(s)	2007
Stock Number	KW-0427-42
MLS Number	9988647
Category	Axle Assemblies, Rear
Last Updated	5/14/2026
Location	York, ON, Canada
Sold By	Lomoca Inc.

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Eaton RSP40 Rear Axle Assembly for a 2007 Kenworth T600

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Eaton RSP40 Rear Rear Differential For Sale 3.70 Ratio - Capacity: 20,000 lbs. - Used - May have some cosmetic blemishes (see photos). Give us a shout by phone, email, or text. We ship...

Condition	Used
Rear End	3.70 ratio
Fits To Make(s)	Kenworth
Fits To Model(s)	T600
Will Fit Year(s)	2007
Part Number	TBD
Stock Number	KW-0526-16
MLS Number	9991547
Category	Axle Assemblies, Rear
Last Updated	5/14/2026
Location	York, ON, Canada
Sold By	Lomoca Inc.

2013 Eaton RSP40 Rear Axle Housing for a Peterbilt 384

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Eaton Rear Rear Axle Housing, RSP40, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum Brakes, ABS.

Condition	Used
Suspension	Air Leaf
Fits To Make(s)	PETERBILT
Fits To Model(s)	384
Stock Number	4424-6
MLS Number	14305907
Category	Axle Housings, Rear
Last Updated	4/30/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Differential

$500 USD

RSP40 - 5.57 Ratio - Pullout - Grade A - Unit In Good Condition.

Condition	Used
Rear End	5.57 ratio
Stock Number	4540415
MLS Number	13895665
Category	Differentials, Rear
Last Updated	4/25/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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2016 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

$725 USD

(USED) Eaton RSP40 Brake Type: AIR DRUM Wheel Type: PILOT Suspension: PETE FLEX AIR Track Width : Verify

Condition	Used
Fits To Make(s)	Peterbilt
Fits To Model(s)	579
Stock Number	25662279
MLS Number	12927212
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Council Bluffs, IA, US
Sold By	Vander Haag's Inc.

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$750 USD

Eaton RSP40 Bare Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange. P/N 321318

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277239-17
MLS Number	14143034
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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Refurbished Eaton RSP40 Bare Axle Housing w/ Torque Rod Bracket. 53.5" Inner Flange To Inner Flange, 16 Hole Flange. P/N 321318

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277185-20-REF
MLS Number	14142996
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

Eaton RSP40 Rear Axle Housing

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Eatont Rear Axle Housing, RSP40, P/N 321330, S/N U111292073, 10 Hole Pilot, Air Disc Brakes.

Condition	Used
Stock Number	31721
MLS Number	14326384
Category	Axle Housings, Rear
Last Updated	4/22/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Differential for a Kenworth T680

$500 USD

RSP40 - 3.42 Ratio - Pullout - P/N 515354 - Grade A - Unit Is In Good Condition.

Condition	Used
Rear End	3.42 ratio
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277192-18
MLS Number	14140764
Category	Differentials, Rear
Last Updated	4/22/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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Refurbished Eaton RSP40 Rear Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange. P/N 321318

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277192-20-REF
MLS Number	14140762
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

$750 USD

Eaton RSP40 Axle Housing w/ Torque Rod Bracket, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Spindles Have Some Bottom Wear. Removed From 2016 Kenworth AG400L Suspension.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277238-18
MLS Number	14142967
Category	Axle Housings, Rear
Last Updated	4/24/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

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Eaton RSP40 Rear Differential

$600 USD

Good used Eaton RSP40 Rear, Rear Differential Assembly. 3.36 Ratio. 90 day guarantee for swap or refund

Condition	Used
Rear End	3.36 ratio
Fits To Make(s)	EATON
Fits To Model(s)	RSP40
Stock Number	Ryd RSP40/3.36/41
MLS Number	10643513
Category	Differentials, Rear
Last Updated	4/25/2026
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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Refurbished Eaton RSP40 Rear Axle Housing, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Removed From 2016 Kenworth AG400L Suspension.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277298-20-REF
MLS Number	14140798
Category	Axle Housings, Rear
Last Updated	4/18/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Rear Axle Housing for a Kenworth T680

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Refurbished Eaton RSP40 Rear Axle Housing, 16 Hole Flange, 53.5" Inner Flange To Inner Flange, P/N 321318. Removed From 2016 Kenworth AG400L Suspension.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277190-20-REF
MLS Number	14142985
Category	Axle Housings, Rear
Last Updated	4/17/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127438.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277239-21
MLS Number	14143041
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment

2016 Eaton RSP40 Axle Shaft for a Kenworth T680

$150 USD

Eaton RSP40 Axle Shaft, P/N 127437.

Condition	Used
Fits To Make(s)	KENWORTH
Fits To Model(s)	T680
Stock Number	UPS-277239-20
MLS Number	14143040
Category	Axle Shafts
Last Updated	4/15/2026
Location	Fresno, CA, US
Sold By	Garabedian Equipment